Key specifications
| Supply voltage | 220–240 V |
|---|---|
| Safety time | 3 s |
| Flame detector type | ionisation electrode or photodiode FD |
| Protection class (IP) | IP40 |
| Fuel | gas, liquid fuel |
| Operating temperatures | -20–70 °C |
| Device type | microprocessor burner management unit |
| Frequency | 50–60 Hz |
| Sensitivity, operating mode (no flame level) | intermittent |
| Burner configuration | atmospheric, progressive |
| Dimensions | 10.7 x 8.1 x 3.6 |
| Ignition transformer voltage | built-in high-voltage |
| Electromagnetic filter | built-in EMC filter |
| Varistor protection | built-in |
| Pre-purge time | 30 s |
144.48EUR
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Description
This Brahma microprocessor burner management unit (model NDM11PR) is intended for automatic ignition and flame monitoring in atmospheric or progressive burners that operate on gas or liquid fuel in intermittent mode. It accepts 220–240 V, 50–60 Hz supply, carries out a 30 s pre-purge, and has a 3 s safety time. Flame control is by ionisation electrode or photodiode FD. Its built-in high-voltage ignition transformer, EMC filter and varistor are housed in an IP40 enclosure that withstands -20 to +70 °C and measures 10.7 x 8.1 x 3.6 cm.
Further details
| Control functions | pre-purge, ignition, flame monitoring and safety lockout |
|---|---|
| Diagnostics and indication | self-diagnosis and LED indication of operating modes and fault codes |
| Mounting method | on a DIN rail or inside equipment |
| Reset method | by briefly interrupting power or by a button (if available) |
| Safety Feature | safety lockout on flame loss or ignition failure |
Signs of failure
Burner management units of this type enter a safety lockout if the flame is lost or ignition fails. The burner then stops and the LED indicates a fault. Reset is done by briefly interrupting the power supply or, if a button is fitted, by pressing the reset button.
All specifications
| Supply voltage | 220–240 V |
|---|---|
| Safety time | 3 s |
| Flame detector type | ionisation electrode or photodiode FD |
| Protection class (IP) | IP40 |
| Fuel | gas, liquid fuel |
| Operating temperatures | -20–70 °C |
| Device type | microprocessor burner management unit |
| Frequency | 50–60 Hz |
| Sensitivity, operating mode (no flame level) | intermittent |
| Burner configuration | atmospheric, progressive |
| Dimensions | 10.7 x 8.1 x 3.6 |
| Ignition transformer voltage | built-in high-voltage |
| Electromagnetic filter | built-in EMC filter |
| Varistor protection | built-in |
| Pre-purge time | 30 s |
Part numbers
| SKU | 37500020 |
|---|---|
| Additional article | 246.124.245 |
| Model | NDM11PR |
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297.00 EURexcl. VAT · import VAT and duties on delivery
